I am a hoarder in games. Frankly, I have Gobbiebag, Safe, Storage, Locker, Satchel, and Sack. I use my Storage to house 80 pieces of event/quest gear that I keep for the memory of the fun I had getting them. I use my Satchel for my immediate gear swaps between my favorite four/five job changes. I use my Sack for housing my quest items for countless quests that I am simultaneously in the middle of (also a decent collection for fishing or teleport/warping). My locker keeps my items for jobs I haven't played in a while, My safe keeps the gear that I use on my jobs that can't wear the higher level stuff yet. This is how my inventory is filled to capacity.
I have mules, but don't like to use them for storage. I formerly used them for convenience of selling/buying things from Jeuno and a second race for a perspective change from my main character.
Also, to anyone doing it, I don't know and don't really care where using toon to describe characters began (personally guessing it comes from use in "Who Framed Roger Rabbit?") however, I find the word oddly irritating, far more so than mob. I understand mob, it was an acronym from back in the heyday of MUDs and MUCKs, which meant Mobile Object (in this case a wandering NPC). Using a term like mob should be used from the point of view of a coder. I find it disheartening to see people in the middle of a world use terms like mob, toon (which i've never seen used in game), and npc. Call it by type, species, gender, or race. Heck, call it the big ugly thing by the tree.
Sorry about the above paragraph, but the word toon really irks me for some reason and triggered it finally.